Nanoparticle enhanced laser ablation and consequent effects on laser induced plasma optical emission

被引：25
|
作者：
De Giacomo, Alessandro [1 ,2 ]
Alrifai, Rim [1 ]
Gardette, Vincent [1 ]
Salajkova, Zita [1 ,3 ]
Dell'Aglio, Marcella [2 ]
机构：
[1] Univ Bari, Dept Chem, Via Orabona 4, I-70126 Bari, Italy
[2] Univ Bari, CNR NANOTEC Chem Dept, Via Orabona 4, I-70126 Bari, Italy
[3] Brno Univ Technol, Cent European Inst Technol CEITEC, Purkynova 656-123, Brno 61200, Czech Republic
来源：
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2020年 / 166卷
关键词：
Nanoparticle enhanced laser induced breakdown spectroscopy (NELIBS); Plasmonic enhanced ablation; Laser ablation; LIBS; LA-ICP-MS; INDUCED BREAKDOWN SPECTROSCOPY;
D O I：
10.1016/j.sab.2020.105794
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
In this paper the plasmon enhanced ablation for elemental analysis is investigated with several experiments in order to point out the crucial questions concerning the laser matter interaction under the effect of plasmonic coupling between the nanoparticle (NP) system and the laser ablation pulse. The correlation between the electromagnetic field enhancement and the signal enhancement during NP enhanced laser induced breakdown spectroscopy (NELIBS), as well as the laser matter interaction at the nanoscale, is discussed in the case of noble metal NPs deposited on metal samples. The results suggest that, while laser pulse energy is concentrated in the space between the NPs, the NP system is shielded by the field enhancement distribution after the laser pulse interacts with the plasmons of the NP system. Finally the comparison of the laser energy transfer to the sample between NELIBS and conventional LIBS is discussed.
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页数：8
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